Finding the Fourth Proportional to 2,928,491.40, 4,391,707.86 and 878,540.70
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Solution
The fourth proportional to 2,928,491.40, 4,391,707.86 and 878,540.70 is: 1,317,502.28
Step by Step Solution
- Step 1: Write the proportion equation
2,928,491.40 : 4,391,707.86 = 878,540.70 : x - Step 2: Convert to fraction form
2,928,491.40/4,391,707.86 = 878,540.70/x - Step 3: Cross multiply
2,928,491.40x = 4,391,707.86 × 878,540.70 - Step 4: Simplify right side
2,928,491.40x = 3,858,294,097,519.90 - Step 5: Solve for x
x = 3,858,294,097,519.90/2,928,491.40 - Step 6: Final answer
x = 1,317,502.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.